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Tuning indium tin oxide work function with solution-processed alkali carbonate interfacial layers for high-efficiency inverted organic photovoltaic cells
This content has been downloaded from IOPscience. Please scroll down to see the full text. 2013 Nanotechnology 24 484011 (http://iopscience.iop.org/0957-4484/24/48/484011) View the table of contents for this issue, or go to the journal homepage for more
Download details: IP Address: 129.115.103.99 This content was downloaded on 30/09/2014 at 21:54
Please note that terms and conditions apply.
IOP PUBLISHING
NANOTECHNOLOGY
Nanotechnology 24 (2013) 484011 (6pp)
doi:10.1088/0957-4484/24/48/484011
Tuning indium tin oxide work function with solution-processed alkali carbonate interfacial layers for high-efficiency inverted organic photovoltaic cells Fei Chen1,2,4 , Qi Chen1,3,4 , Lin Mao1,2 , Yixin Wang1,2 , Xun Huang1 , Wei Lu1 , Bing Wang3 and Liwei Chen1 1
i-LAB, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People’s Republic of China 2 Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, People’s Republic of China 3 Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, People’s Republic of China E-mail: [email protected]
Received 21 June 2013, in final form 26 July 2013 Published 6 November 2013 Online at stacks.iop.org/Nano/24/484011 Abstract Selective electron collection by an interfacial layer modified indium tin oxide cathode is critically important for achieving high-efficiency inverted structure organic photovoltaic (OPV) cells. Here, we demonstrate that solution-processed alkali carbonates, such as Li2 CO3 , Na2 CO3 , K2 CO3 , Rb2 CO3 , Cs2 CO3 , are good interfacial layer materials. Both carbonate concentration and annealing conditions can affect cathode work function and surface roughness. By proper optimization, different alkali carbonates can be almost equally effective as the cathode interfacial layer. Furthermore, good device performance can be achieved at a low annealing temperature (
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My IOPscience
Tuning indium tin oxide work function with solution-processed alkali carbonate interfacial layers for high-efficiency inverted organic photovoltaic cells
This content has been downloaded from IOPscience. Please scroll down to see the full text. 2013 Nanotechnology 24 484011 (http://iopscience.iop.org/0957-4484/24/48/484011) View the table of contents for this issue, or go to the journal homepage for more
Download details: IP Address: 129.115.103.99 This content was downloaded on 30/09/2014 at 21:54
Please note that terms and conditions apply.
IOP PUBLISHING
NANOTECHNOLOGY
Nanotechnology 24 (2013) 484011 (6pp)
doi:10.1088/0957-4484/24/48/484011
Tuning indium tin oxide work function with solution-processed alkali carbonate interfacial layers for high-efficiency inverted organic photovoltaic cells Fei Chen1,2,4 , Qi Chen1,3,4 , Lin Mao1,2 , Yixin Wang1,2 , Xun Huang1 , Wei Lu1 , Bing Wang3 and Liwei Chen1 1
i-LAB, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People’s Republic of China 2 Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, People’s Republic of China 3 Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, People’s Republic of China E-mail: [email protected]
Received 21 June 2013, in final form 26 July 2013 Published 6 November 2013 Online at stacks.iop.org/Nano/24/484011 Abstract Selective electron collection by an interfacial layer modified indium tin oxide cathode is critically important for achieving high-efficiency inverted structure organic photovoltaic (OPV) cells. Here, we demonstrate that solution-processed alkali carbonates, such as Li2 CO3 , Na2 CO3 , K2 CO3 , Rb2 CO3 , Cs2 CO3 , are good interfacial layer materials. Both carbonate concentration and annealing conditions can affect cathode work function and surface roughness. By proper optimization, different alkali carbonates can be almost equally effective as the cathode interfacial layer. Furthermore, good device performance can be achieved at a low annealing temperature (
